CN104932110B - Display device - Google Patents
Display device Download PDFInfo
- Publication number
- CN104932110B CN104932110B CN201410103382.0A CN201410103382A CN104932110B CN 104932110 B CN104932110 B CN 104932110B CN 201410103382 A CN201410103382 A CN 201410103382A CN 104932110 B CN104932110 B CN 104932110B
- Authority
- CN
- China
- Prior art keywords
- width
- light
- layer
- conductive layer
- liquid crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention is related to a kind of display device, including：One display unit, include a picture element layer；One back light unit；And a modulation unit, it is arranged between the display unit and the back light unit, the modulation unit includes a liquid crystal layer, and the liquid crystal layer includes a high polymer dispersed liquid crystal (PDLC) or a high molecule steady liquid-crystal (PSLC).
Description
Technical field
The present invention is on a kind of display device, espespecially a kind of changeable two-dimentional (2D), the display device of three-dimensional (3D) image.
Background technology
The mankind are to perceive the image of real world through the prospect that eyes are seen.And the brain of the mankind can be further
The space length difference between the prospect of two different angles is seen according to eyes and forms so-called three-dimensional (3-
Dimension, 3D) image.In general, three-dimensional display apparatus is exactly the visual field for simulating mankind's eyes different angle, and cause
Observer can be perceived as the display device of 3-dimensional image when viewing two dimension shows image.
Current three-dimensional display apparatus is broadly divided into two classes, is automatic holographic display device (Auto- respectively
Stereoscopic display) and non-automatic device for displaying stereoscopic images (Stereoscopic display).It is automatic vertical
The user of body display device does not have to the glasses for additionally putting on special construction, it is possible to finds out 3 D stereoscopic image, that is, is referred to as
It is naked to regard 3-D technology.Conversely, another non-automatic device for displaying stereoscopic images then needs user additionally to wear the eye of specially made structure
Mirror, it can just see 3 D stereoscopic image.
Common automatic holographic display device, including：Disparity barrier formula (parallax barrier) display device,
Spatial sequence formula (spatial sequential) display device and time series formula (time sequential) display are set
It is standby.Wherein, the principle of the display device of disparity barrier formula is to rely on lighttight disparity barrier, allows the right and left eyes of user to see
Image with parallax, and this parallax will form third dimension in the brain.Spatial sequence formula display device is to utilize not at any time
Between the disparity barrier that operates different groups of pixel is seen by right and left eyes, and this two groups of pixels are given the news of left eye and right eye respectively
Number, and then allow two to see different images；Shortcoming is that resolution ratio can decline.The display device of time series formula be utilize with
Time operation and with the synchronously driven disparity barrier of display panel, allow two to see same group of pixel under different time, and
This group of pixel is given the signal of left eye and right eye respectively under different time, and then allows two to see different images.
In recent years, gradually lifted for the demand of display device of 3-dimensional image is presented, based on the market demand, at present urgently
Need one kind to allow hand over the display device of two-dimentional (2D) or three-dimensional (3D) image, facilitate observer's selection is desired to view and admire pattern.
The content of the invention
It is a primary object of the present invention to provide a kind of display device, can be switched to according to observer's demand two-dimentional (2D) or
Three-dimensional (3D) image.
To reach above-mentioned purpose, the present invention provides a kind of display device, including：One display unit, include a picture element layer；One
Back light unit；And a modulation unit, it is arranged between the display unit and the back light unit, the modulation unit includes a liquid crystal
Layer, and the liquid crystal layer includes a high polymer dispersed liquid crystal (PDLC) or a high molecule steady liquid-crystal (PSLC).
In the display device of the present invention, apply voltage by adjusting, make the light from back light unit, by liquid crystal layer
Adjustment, presentation two-dimentional (2D) or three-dimensional (3D) image are reached in the form of dissipating or penetrate.Also, included in back light unit
In the case of light guide plate and light-emitting component, candy strip can be further set on light guide plate, by the width for adjusting candy strip
Visual inhomogeneities when degree and spacing, improving light guide plate light extraction efficiency inhomogeneities, while solving to watch display device.And
In the operation of device, it can pass through adjustment and apply the type of electrode pattern and the haze value of liquid crystal layer in voltage swing, modulation unit
High low, Effective Regulation light extraction form, and then show two-dimentional (2D) or three-dimensional (3D) image.In addition, enter the aobvious of light in side
Show in equipment, reflecting layer can be also set up on the surface of light guide plate, reduce the light reflected without candy strip on light guide plate and wear
Appear and waste, be effectively increased light extraction efficiency.Or in the case of back light unit is with area source light extraction, can liquid crystal layer with
Barrier layer is also set up between back light unit, to light of the selective masking from back light unit.Also, modulation unit can be with showing
Show that unit shares substrate or modulation unit and can share substrate with back light unit, reduce the weight and substrate cost of device.To sum up institute
State, display device of the invention changeable two-dimentional (2D), the image of three-dimensional (3D), can be applied to any display device, such as：Car
With display, electronic game device, electrical home appliances display, instrument display, notebook computer etc., accordingly, display of the invention
Equipment can facilitate observer's selection is desired to view and admire pattern, and enjoyment is viewed and admired in easily lifting.
Brief description of the drawings
Figure 1A, Figure 1B are the display device schematic diagrames of a preferred embodiment of the present invention.
Fig. 2A, Fig. 2 B are the back light unit schematic diagrames of a preferred embodiment of the present invention.
Fig. 3 is the display device schematic diagram of another preferred embodiment of the present invention.
Fig. 4 is the display device schematic diagram of another preferred embodiment of the invention.
Fig. 5 A are the back light unit schematic diagrames of a preferred embodiment of the present invention.
Fig. 5 B are the candy strip schematic diagrames of the light guide plate of a preferred embodiment of the present invention.
Fig. 5 C are the liquid crystal layer schematic diagrames of a preferred embodiment of the present invention.
Fig. 6 A to Fig. 6 C are the modulation cell schematics of a preferred embodiment of the present invention.
Fig. 7 A to Fig. 7 D are the modulation cell schematics of another preferred embodiment of the present invention.
Fig. 8 A to Fig. 8 D are the modulation cell schematics of another preferred embodiment of the invention.
Fig. 9 A are the back light unit schematic diagrames of another preferred embodiment of the present invention.
Fig. 9 B are the candy strip schematic diagrames of the light guide plate of another preferred embodiment of the present invention.
Fig. 9 C are the liquid crystal layer schematic diagrames of another preferred embodiment of the present invention.
Figure 10 A are the modulation cell schematics of another preferred embodiment of the invention.
Figure 10 B are the modulation cell schematics of another embodiment of the present invention.
【Symbol description】
The insulating barrier of 1 display unit 252 first
The conductive layer of 11 first polarisation part 26 the 3rd
The tetrabasal of 12 first substrate 27
The conductive layer of 13 picture element layer 28 the 4th
The substrate of 131 pixel cell 29 the 5th
The back light unit of 14 second substrate 3
The light-emitting component of 15 second polarisation part 31
The light guide plate of 2 modulation unit 32
The first surface of 21 the 3rd substrate 321
The second surface of 211 second insulating barrier 322
The driver element of 22 first conductive layer 33
The voltage supply unit of 221 exiting surface 4
The candy strip of 23 liquid crystal layer 5
The first end of 231 first area 51
The end of 232 second area 52 second
The barrier layer of 233 the 3rd area 6
The reflecting layer of 234 liquid crystal cells 71,72
The negative electrode of 235 space 81
The 236 two-dimentional anodes of area 82
The data wire of 24 second conductive layer 83
The scan line of 241 bar element 84
25 tetrabasal B spacing
251 incidence surface D distances
W1, W2, W3, A width
Embodiment
Illustrate embodiments of the present invention below by way of particular specific embodiment, people skilled in the art can be by this theory
Content disclosed in bright book understands other advantages and effect of the present invention easily.The present invention also can be different specific by other
Embodiment is implemented or applied, and the various details in this specification can also be directed to different viewpoints and application, not depart from this wound
Various modifications and change are carried out under the spirit of work.
[embodiment 1]
Figure 1A is refer to, it is display device schematic diagram of the invention.Display device includes：Display unit 1, modulation unit
2 and back light unit 3, modulation unit 2 be arranged between display unit 1 and back light unit 3.Display unit 1 sequentially includes：First
Polarisation part 11, first substrate 12, picture element layer 13, the polarisation part 15 of second substrate 14 and second；Modulation unit 2 sequentially includes：3rd
Substrate 21, the first conductive layer 22, liquid crystal layer 23, the second conductive layer 24, tetrabasal 25 and barrier layer 6；And back light unit 3
Comprising：Light-emitting component 31 and light guide plate 32, light-emitting component 31 are arranged at two sides of light guide plate 32.
In the present invention, display unit 1 is unrestricted, such as can be common liquid crystal display (LCD) or organic light emission
Diode display unit (OLED).Wherein, picture element layer 13 includes multiple pixel cells 131, when display unit 1 is liquid crystal display list
Member, then multiple pixel cells 131 include its driving electrodes, drive circuit, switch element, passive device, colored filter or
Liquid crystal.Here, it is that the situation of six sub- pixel cells is included as example with a pixel cell 131；However, the present invention is not
This is limited to, as long as a pixel cell 131 includes the sub- pixel cell of more than three, you can the display for reaching the present embodiment is set
Standby purpose.
High polymer dispersed liquid crystal (polymer dispersed liquid are included in the liquid crystal layer 23 of modulation unit 2
Crystal, PDLC) or high molecule steady liquid-crystal (polymer stabilized liquid crystal, PSLC)；Macromolecule
Dispersed LCD (PDLC) is dispersed in macromolecule for the liquid crystal droplet of tool optics aeolotropic (optical anisotropy)
In converging network.Liquid crystal of the high molecule steady liquid-crystal (PSLC) also for tool optics aeolotropic is dispersed in relatively low concentration
Macromolecule in, and general high molecule steady liquid-crystal use cholesterol liquid crystal, can possess on state of in the environment of without application voltage
With the bistable characteristic of dark-state two states.In this embodiment, high molecular dispersion liquid is included in the liquid crystal layer 23 of modulation unit 2
Brilliant (PDLC), by applying voltage, it can adjust the index matching relation between liquid crystal and macromolecule, modulation in liquid crystal layer 23 and come from
The light of back light unit 3 is sent in the form of scattering or penetrating.
The material of barrier layer 6 can be the material of any prior art black matrix", also can be the gold with satisfactory electrical conductivity
Belong to material；And the structure of barrier layer 6 is generally paliform vertical bar structure, for light of the selective masking from back light unit 3.
Accordingly, there is no particular restriction for the set location of barrier layer 6；In the present embodiment, barrier layer 6 is arranged at liquid crystal layer 23 and backlight list
Between member 3, on the incidence surface (the neighbouring side of back light unit 3) of tetrabasal 25, and other set locations can be by the art
People deduces easily, such as：On the incidence surface of second conductive layer 24 of modulation unit 2；On the bottom surface of the light guide plate 32 of back light unit 3
Deng.
Also, back light unit 3 is unrestricted, it is only necessary to emits beam, there is provided light sequentially arrives at modulation unit 2, display unit
1st, finally to observer's eyes, therefore, back light unit 3 can be the illuminator of any prior art；It is bright compared with Canon's offer secretly to interlock
Lighting kenel, imply that the illuminator that can send the non-planar light such as point-like, wire, such as：The master of Organic Light Emitting Diode
Dynamic matrix or passive-matrix；However, if the area source that can send uneven brightness, it shows bright vision effect secretly staggeredly
Fruit, it is equally applicable for the present invention.In this embodiment, back light unit 3 includes light-emitting component 31 and light guide plate 32, light-emitting component 31
The light sent is incident to the light extraction again of light guide plate 32.Light-emitting component 31 can be made up of multiple light emitting diodes (LED), with one side
Enter light, bilateral enters light, whole face enters light and is applied to the present invention；In this embodiment, light-emitting component 31 is arranged at the two of light guide plate 32
Side, lighted in the form of bilateral enters light.
In addition, the present invention display device in, first substrate 12, second substrate 14, the 3rd substrate 21, tetrabasal 25,
First polarisation part 11, the second polarisation part 15 and light guide plate 32 all use general prior art material, and substrate and light guide plate can
For the high transparent material of penetrability, such as glass, plastics, acryl etc.；Polarisation part can be the film layer in adjustment light polar biased direction,
Such as polyvinyl alcohol film (PVA), three cellulose acetate membrane (TAC) etc.；No longer it is described in detail in this.In this embodiment, first
Substrate 12 is colored filter (CF) glass substrate, second substrate 14 is thin film transistor (TFT) (TFT) glass substrate.
In the present invention, the first conductive layer 22, the material of the conductive layer of the second conductive layer 24 can be what the art was commonly used
Electrode material, as indium tin oxide (ITO), indium-zinc oxide (Indium Zinc Oxide, IZO) or other electrically conducting transparents are thin
Membrane material (transparent conduc tive oxide, TCO) etc..Conductive layer can be patterned by exposure imaging technology,
Can be plane inner switching type (IPS), fringe field switch type pattern (FFS), stable twisted nematic (TN), vertical orientation type (VA) etc.
The pattern of form, to regulate and control light type and viewing angle distribution.
, can be by applying voltage (such as Figure 1A, Figure 1B, voltage supply unit 4) adjustment from the back of the body in the display device of the present invention
The light of light unit 3 refer to Figure 1A, be less than the starting electricity of liquid crystal layer 23 in the voltage of application by the state of modulation unit 2
In the case of pressing (threshold voltage, Vth) or no applied voltage, the warp (as shown by arrows) of the light from back light unit 3
After crossing the liquid crystal layer 23 of modulation unit 2, light arrives at display unit 1 in the form of scattering and sent again, observer is received two dimension
The flat image of (2D)；On the other hand, Figure 1B is refer to, in the case where applying voltage, light (such as arrow from back light unit 3
Shown in head) after liquid crystal layer 23, light arrives at display unit 1 in the form of penetrating and sent again, observer is received three-dimensional (3D)
Stereopsis.Accordingly, display device of the invention can effectively switch two-dimentional (2D), the image of three-dimensional (3D), can be applied to appoint
What display device, such as：Vehicle display, electronic game device, electrical home appliances display, instrument display, notebook computer etc.,
Facilitate observer's selection is desired to view and admire pattern, enjoyment is viewed and admired in easily lifting.
Wherein, the distance between the picture element layer 13 and back light unit 3 of display unit 1 is preferably 0.5 to 4mm；When picture element layer 13
When distance between back light unit 3 is between above range, observer can obtain the preferable quality of image.In this embodiment, see
Shown in the preferable equation below sequence 1 of distance (D) of survey person's eyes to display unit 1：
[equation 1]
Wherein, eye represents observer's eyes distance, and SPP represents the spacing (pitch) of sub- pixel cell, and LC represents that light leads to
Cross the distance of liquid crystal layer, nLCThe refractive index of liquid crystal layer is represented, TFT1 represents that second substrate (is to have thin film transistor (TFT) glass base in this
Plate) thickness, nTFTThe refractive index of second substrate is represented, pol.2 represents the thickness of the second polarisation part, npolSecond substrate is represented
Refractive index, air represents the distance between display unit and modulation unit, nairThe refractive index of air is represented, PDLC is expressed as liquid crystal
The thickness of layer, nPDLCRepresent the refractive index of liquid crystal layer.
Illustrate：In the case where observer's eyes are at a distance of 32.5mm, when picture element layer 13 and back light unit 3 apart
During 0.8386mm, the distance (D) of observer's eyes to display unit 1 is 60mm；When picture element layer 13 and back light unit 3 apart
During 2.5036mm, the distance (D) of observer's eyes to display unit 1 is 3313mm.Or in observer's eyes at a distance of 65mm's
In the case of, when picture element layer 13 and the 0.8386mm apart of back light unit 3, the distance (D) of observer's eyes to display unit 1 is
120mm；When picture element layer 13 and back light unit 3 are at a distance of 2.5036mm, the distance (D) of observer's eyes to display unit 1 is
6727mm.Describe in detail, each value substituted into equation 1 is listed in the table below 1：
[table 1]
[embodiment 2]
For the back light unit in display device of the present invention, describe in detail as follows.Fig. 2A, Fig. 2 B are referred to, it is backlight
Two kinds of embodiment aspects in multiple candy strips 5 and reflecting layer 71,72 are provided with unit 3.Wherein, back light unit 3 includes luminous
Element 31 and light guide plate 32, light-emitting component 31 are arranged at two sides (incidence surface) of light guide plate 32, and light guide plate has first surface
321 (exiting surfaces) and relative second surface 322 (bottom surface), and first surface 321 is adjacent to modulation unit (not shown), it is guide-lighting
The second surface 322 of plate 32 is provided with multiple candy strips 5；As shown in Figure 2 A, reflecting layer 71 may be disposed on second surface 322
And cover second surface 322 and multiple candy strips 5；Or as shown in Figure 2 B, reflecting layer 72 can be only arranged at multiple bar graphs
In case 5 and cover multiple candy strips 5.
Here, the material of multiple candy strips 5 has no specifically limited, can to occur for any energy destruction total reflection situation material
Material；For example, the material of multiple candy strips 5 can be by titanium dioxide (TiO2) composite wood that is formed with ink or photoresistance
Material.In addition, reflecting layer 71,72 can be the metal level of single or multiple lift structure, the preferably film layer with high reflectivity, such as silver
Or aluminium (Al) layer (Ag).However, the present invention is not limited to this.Furthermore in the present embodiment, multiple candy strips 5 are directly set
It is placed on light guide plate 32；However, groove can be also formed on light guide plate 32, then in the groove that multiple candy strips 5 are embedded at.
Consequently, it is possible to the light sent by light-emitting component 31, some light arrives at multiple stripeds (as depicted by the solid-line arrows)
Pattern 5 and sent by reflection toward first surface 321, some light penetrates second surface 322 and anti-(as the dotted line arrows)
Penetrate layer 71,72 and reflect and send toward first surface 321, the light penetration reflected without candy strip 5 can be reduced and go out second surface 322
And waste, it is effectively increased light extraction efficiency.
[embodiment 3]
Fig. 3 is referred to, it is the display device schematic diagram of another embodiment of the present invention；Display unit is shown in the present embodiment
1 with modulation unit 2 with reference to and can omit and a substrate is set, describe in detail, display unit 1 sequentially includes：First polarisation part 11,
One substrate 12, picture element layer 13 and second substrate 14, modulation unit 2 sequentially includes：First conductive layer 22, liquid crystal layer 23, second
Conductive layer 24, the polarisation part 15 of tetrabasal 25 and second；Accordingly, display unit 1 is used in conjunction with second substrate with modulation unit 2
14, the 3rd substrate 21 being contained in modulation unit 2 in embodiment 1 can be omitted, and reduce the weight and substrate cost of device.This
Outside, the back light unit 3 in the present embodiment is identical with Fig. 2A, is not repeated to describe herein.
In this embodiment, display unit 1 is liquid crystal display (LCD), the portion entered by the incident side of display unit 1
Divide ultraviolet light to be stopped by the second polarisation part 15, and be not easily deteriorated the liquid crystal structure of modulation unit 2 and display unit 1.In addition,
During by exposure imaging technology to pattern the first conductive layer 22 and the second conductive layer 24, because modulation unit 2 is contained in display
In unit 1, designed beneficial to alignment display unit 1, and then beneficial to light type and viewing angle distribution.
Wherein, it is same as Example 1, the distance between the picture element layer 13 and back light unit 3 of display unit 1 be preferably 0.5 to
4mm；When the distance between picture element layer 13 and back light unit 3 is between above range, observer can obtain the preferable quality of image.
In this embodiment, the distance (D) of observer's eyes to display unit 1 is preferably shown in equation below sequence 2：
[equation 2]
Wherein, eye, SPP, LC, nLC、TFT1、nTFT、pol.2、npol.、air、nair, PDLC and nPDLCDefinition and equation
Formula 1 is identical, and LGP represents the thickness of light guide plate, nLGPRepresent the refractive index of light guide plate.
Illustrate：In the case where observer's eyes are at a distance of 32.5mm, when picture element layer 13 and back light unit 3 apart
During 1.3386mm, the distance (D) of observer's eyes to display unit 1 is 120mm；When picture element layer 13 and back light unit 3 apart
During 3.2036mm, the distance (D) of observer's eyes to display unit 1 is 4155mm.Or in observer's eyes at a distance of 65mm's
In the case of, when picture element layer 13 and the 1.3386mm apart of back light unit 3, the distance (D) of observer's eyes to display unit 1 is
242mm；When picture element layer 13 and back light unit 3 are at a distance of 3.2036mm, the distance (D) of observer's eyes to display unit 1 is
8312mm.Describe in detail, each value substituted into equation 2 is listed in the table below 2：
[table 2]
[embodiment 4]
Fig. 4 is referred to, it is the display device schematic diagram of yet another embodiment of the invention；Modulation unit is shown in the present embodiment
2 with back light unit 3 with reference to and can omit and a substrate is set, describe in detail, modulation unit 2 sequentially includes：3rd substrate 21, first
Conductive layer 22, the conductive layer 24 of liquid crystal layer 23 and second, back light unit 3 are identical with described in Fig. 2A；Accordingly, modulation unit 2 have into
Smooth surface 251 and relative exiting surface 221, back light unit 3 are attached on incidence surface 251.Therefore, it is contained in modulation in embodiment 1
Tetrabasal 25 in unit 2 can be omitted, and share the light guide plate 32 of back light unit 3, reduce the weight and substrate cost of device.
In addition, the display unit 1 in the present embodiment is same as Example 1, it is not repeated to describe herein.
Wherein, it is same as Example 1, the distance between the picture element layer 13 and back light unit 3 of display unit 1 be preferably 0.5 to
4mm；When the distance between picture element layer 13 and back light unit 3 is between above range, observer can obtain the preferable quality of image.
In this embodiment, the distances (D) of observer's eyes to display unit 1 is preferably also as above shown in equation 2.Illustrate：Seeing
Survey person's eyes are in the case of the 32.5mm, and when picture element layer 13 and back light unit 3 are at a distance of 1.8386mm, observer's eyes are to aobvious
The distance (D) for showing unit 1 is 164mm；When picture element layer 13 and back light unit 3 are at a distance of 3.6036mm, observer's eyes to display
The distance (D) of unit 1 is 4636mm.Or in the case where observer's eyes are at a distance of 65mm, when picture element layer 13 and back light unit
3 at a distance of 1.8386mm when, the distance (D) of observer's eyes to display unit 1 is 329mm；When picture element layer 13 and the phase of back light unit 3
During away from 3.6036mm, the distance (D) of observer's eyes to display unit 1 is 9275mm.Describe in detail, substitute into equation 2
Each value is listed in the table below 3：
[table 3]
[embodiment 5]
For the back light unit and liquid crystal layer in display device of the present invention, describe in detail as follows.Fig. 5 A are referred to, it is to lead
The schematic diagram of multiple candy strips 5 is provided with tabula rasa 32, and light-emitting component 31 is arranged at two sides of light guide plate 32；Wherein,
As shown in Figure 5 B, each candy strip 5 has first end 51 and a second relative end 52, and the width of first end 51 is W1, and second
The width at end 52 is W2, and candy strip 5 has central width W3.In this embodiment, W1 is less than W3 and W2 is also smaller than W3.Cause
This, the candy strip of light guide plate of the invention, has lesser width in the end 52 of first end 51 and second close to light-emitting component 31,
And there is larger width W3 in the middle section away from light-emitting component 31, the light guide plate pattern of such a particular design, it can improve
In the case of prior art double side enters light, the middle section light extraction efficiency caused by equal width pattern is bad, makes overall light extraction
Even intensity.
Also, Fig. 5 C are referred to, liquid crystal layer coordinates with light guide plate, can divide liquid crystal layer 23 for the corresponding width to first end 51
Spend the first area 231 for W1, the second area 232 that the width correspondingly to the second end 52 is W2 and correspondingly to the of central width W3
Three areas 233.Visual inhomogeneities when accordingly, in order to solve to watch display device, the width of candy strip 5 less W1, W2
Corresponding the first area 231, the second area 232, because the both ends spacing of candy strip 5 is larger, the first area 231, second of liquid crystal layer 23
Area 232 may be designed as the higher region of haze value (haze value)；On the contrary, the central width W3 of candy strip 5 is larger, because of striped
5 central spacing of pattern is smaller, and the 3rd area 233 of corresponding liquid crystal layer 23 may be designed as the relatively low area of haze value (haze value)
Domain.
[embodiment 6]
For modulation unit 2, Fig. 6 A~Fig. 6 C are referred to, it is that modulation unit 2 is sequentially led comprising the 3rd substrate 21, first
Electric layer 22, liquid crystal layer 23, the schematic diagram of the second conductive layer 24 and tetrabasal 25；Wherein, liquid crystal layer 23 includes multiple liquid crystal lists
Member 234, the first conductive layer 22, the second conductive layer 24 respectively be located at liquid crystal layer 23 two surfaces, in other words, liquid crystal layer 23 between
Between first conductive layer 22 and the second conductive layer 24, the first conductive layer 22 is used as whole face electrode, and the second conductive layer 24 is through pattern
Change forms plane inner switching type (IPS) pattern, and it includes multiple bar elements 241, the width A of each bar element 241 and institute
The summation for stating the spacing B of bar element 241 is less than the minimum widith of candy strip on light guide plate (that is, the first of the explanation of embodiment 5
Width W1 or the second width W2), i.e. A+B ＜ W1 or A+B ＜ W2.Wherein, COM represent electrode common voltage signal, symbol+or-
It is positive polarity or negative polarity to represent that electrode voltage signal corresponds to common voltage signal.In addition, those skilled in the art understand：Backlight
Unit may be not necessarily provided at the position for being adjacent to the second conductive layer 24, and back light unit, which also may be provided at, is adjacent to the first conductive layer
22 position.
[embodiment 7]
For another aspect of modulation unit 2, Fig. 7 A~Fig. 7 D are referred to, it is that modulation unit 2 sequentially includes the 3rd base
Plate 21, the first conductive layer 22, liquid crystal layer 23, the second conductive layer 24, the first insulating barrier 252, the 3rd conductive layer 26 and tetrabasal
27 schematic diagram；Wherein, liquid crystal layer 23 includes multiple liquid crystal cells 234, and the first conductive layer 22, the second conductive layer 24 are located at respectively
Two surfaces of liquid crystal layer 23, in other words, liquid crystal layer 23 are led between the first conductive layer 22 and the second conductive layer 24 in second
The side of electric layer 24 also sets up the 3rd conductive layer 26, and between the second conductive layer 24 and the 3rd conductive layer 26, second leads an insulating barrier
The conductive layer 26 of electric layer 24 and the 3rd electrically can be controlled independently.First conductive layer 22 and the 3rd conductive layer 26 are all as whole face electricity
Pole, and the second conductive layer 24 is patterned into fringe field switch type (FFS) pattern, it includes multiple bar elements 241, often
The width A of the one bar element 241 and spacing B of the bar element 241 summation is less than the minimum of candy strip on light guide plate
Width (that is, embodiment 5 illustrates the first width W1 or the second width W2), i.e. A+B ＜ W1 or A+B ＜ W2.Wherein, COM is represented
It is positive polarity or negative polarity that electrode common voltage signal, symbol+or-expression electrode voltage signal, which correspond to common voltage signal,.This
Outside, those skilled in the art understand：Back light unit may be not necessarily provided at the position for being adjacent to the 3rd conductive layer 26, back light unit
Also it may be provided at the position for being adjacent to the first conductive layer 22.
[embodiment 8]
For another aspect of modulation unit 2, Fig. 8 A~Fig. 8 D are referred to, it is that modulation unit 2 sequentially includes the 5th base
Plate 29, the 4th conductive layer 28, the second insulating barrier 211, the first conductive layer 22, liquid crystal layer 23, the second conductive layer 24, the first insulating barrier
252nd, the schematic diagram of the 3rd conductive layer 26 and tetrabasal 27；Wherein, liquid crystal layer 23 includes multiple liquid crystal cells 234, and first leads
Electric layer 22, the second conductive layer 24 are located at two surfaces of liquid crystal layer 23 respectively, and in other words, liquid crystal layer 23 is between the first conductive layer 22
And second between conductive layer 24, the 3rd conductive layer 26 is also set up in the side of the second conductive layer 24, an insulating barrier is between the second conductive layer
24 and the 3rd between conductive layer 26, and the second conductive layer 24 and the 3rd conductive layer 26 electrically can be controlled independently.It is conductive in first
22 side of layer also set up the 4th conductive layer 28, and between the first conductive layer 22 and the 4th conductive layer 28, first leads another insulating barrier
The conductive layer 28 of electric layer 22 and the 4th electrically can be controlled independently.3rd conductive layer 26 and the 4th conductive layer 28 are all as whole face electricity
Pole, and the first conductive layer 22 and the second conductive layer 24 are all patterned into fringe field switch type (FFS) pattern and wrapped respectively
Containing multiple bar elements, the width A of each bar element and spacing B of bar element summation is less than striped on light guide plate
The minimum widith (that is, embodiment 5 illustrates the first width W1 or the second width W2) of pattern, i.e. A+B ＜ W1 or A+B ＜ W2.Its
In, COM represent electrode common voltage signal, symbol+or-represent electrode voltage signal correspond to common voltage signal be positive polarity or
Negative polarity.In addition, those skilled in the art understand：Back light unit may be not necessarily provided at the position for being adjacent to the 3rd conductive layer 26
Put, back light unit also may be provided at the position for being adjacent to the 4th conductive layer 28.
In above-described embodiment 6~8, as shown in Fig. 6 A, Fig. 7 A, Fig. 8 A, (that is, it is in when display device maintains equipotential state
The battery saving mode of existing bidimensional image) when, the liquid crystal molecule direction Arbitrary distribution in liquid crystal cells 234, light is (as shown by arrows) to be led to
It is in scattering state to cross liquid crystal layer 23, and therefore, what is sent is light scattering strong, shows high haze value；As shown in Fig. 6 B, Fig. 7 B, Fig. 8 B,
When display device is vertical electric field state (that is, being presented 3-dimensional image), all perpendicular point of liquid crystal molecule in liquid crystal cells 234
Cloth, light (as shown by arrows) is by liquid crystal layer 23 in state is penetrated, and therefore, what is sent is light scattering low, shows ground fog value；With
And as shown in Figure 6 C：When display device is in horizontal (that is, being presented bidimensional image) with vertical electric field state, or such as Fig. 7 C, Fig. 8 C institute
Show：When display device is in FFS levels and vertical electric field state (that is, a kind of aspect that bidimensional image is presented), or such as Fig. 7 D, figure
Shown in 8D：When display device edge and plane inner switching type (Fringe and in-plane switch, FIS) level with
During vertical electric field state (that is, another aspect that bidimensional image is presented), liquid crystal molecule part in liquid crystal cells 234 is perpendicular,
Part is in the horizontal and inclined distribution in part, and light (as shown by arrows) is by liquid crystal layer 23 in partial penetration, part divergent shape
State, therefore, the scattering and haze value of the light sent with the width A of each bar element and the spacing B of the bar element and
Change.
Thus, because PDLC liquid crystal layer release voltages return back to the time length of stable state, two dimension of the invention or 3-dimensional image
The operator scheme (pre-charge) of pre-applied voltage is all taken, voltage operating range is built on into lower slightly starting voltage and operation
Between voltage, be advantageous to the switch speed of lifting two dimension and 3-dimensional image.And when being still in bidimensional image for a long time or need not
When being rapidly switched to 3-dimensional image, then releasable voltage enters the battery saving mode that bidimensional image is presented, and amplifies voltage operating range
To reduce device energy-wasting.
Accordingly, via embodiment 5~8, the mode of operation that can illustrate is as follows：
In the case where applying identical voltage for the firstth area, the secondth area and the 3rd area of liquid crystal layer, ground fog value is presented
Region, the less electrode spacing that should arrange in pairs or groups (that is, the spacing B of bar element) or larger electrode width (that is, the width of bar element
Spend A)；On the contrary, the region of high haze value is presented, the larger electrode spacing that should arrange in pairs or groups (that is, the spacing B of bar element) or less
Electrode width (that is, the width A of bar element)；Or
In fixed electrode width (that is, the width A of bar element) and the feelings of electrode spacing (that is, the spacing B of bar element)
Under condition, the liquid crystal layer region of ground fog value, which is presented, should apply higher vertical direction electric field (both sides electrode voltage difference is larger), present high
The liquid crystal layer region of haze value should apply relatively low vertical direction electric field (both sides electrode voltage difference is smaller).
In addition, in addition to adjusting liquid crystal layer haze value with electrode pattern, also the mode of uneven exposure can be used to reach has
The liquid crystal layer of different haze value.For example, a shielding is placed above liquid crystal layer from liquid crystal layer towards in the case of irradiation with ultraviolet light
(or film layer), the shielding have the dark images of uneven light transmittance or nonhomogeneous density；Consequently, it is possible to through ultraviolet lighting
After penetrating, the high-transmittance of corresponding shielding or the liquid crystal layer region in high density dark images region, because by the ultraviolet of higher-energy
Light action, you can form higher haze value；On the contrary, the low light transmission of corresponding shielding or the liquid crystal in low-density dark images region
Layer region, because by the action of ultraviolet light compared with low energy, you can form relatively low haze value.Or with ultraviolet light from liquid crystal layer towards
In the case of irradiation, a convex lens (or projection) are placed above liquid crystal layer, by the optically focused characteristic of convex lens, center can be caused
Luminous intensity is higher and both ends luminous intensity is relatively low, and can also form the liquid crystal layer with different haze value.Furthermore it can illustrate such as：With purple
In the case that outer light irradiates from the side of liquid crystal layer two, reflecting layer is placed above liquid crystal layer, arrive at reflecting layer using ultraviolet light and
Liquid crystal layer is reflexed to, by adjusting ultraviolet light exit positions, reflecting layer angle, can also form the liquid crystal layer with different haze value.
[embodiment 9]
For another aspect of back light unit in display device of the present invention, Fig. 9 A~Fig. 9 C are refer to, are described in detail as follows.
As shown in Figure 9 A, when light-emitting component 31 is only arranged at a side of light guide plate 32；The multiple bar graphs set on light guide plate 32
Case 5, as shown in Figure 9 B, each candy strip 5 have first end 51 and the second relative end 52, and the width of first end 51 is W1,
The width at the second end 52 is W2, and candy strip 5 has central width W3.In this embodiment, W1 is less than W3 and W3 is less than W2.
Therefore, the candy strip of light guide plate of the invention, there is lesser width in the first end 51 close to light-emitting component 31, and in remote
Second end 52 of light-emitting component 31 has larger width W2, the light guide plate pattern of such a particular design, can improve prior art
In the case of single side enters light, the region light extraction efficiency of the remote light-emitting component caused by equal width pattern is bad.
Liquid crystal layer coordinates with light guide plate, refers to Fig. 9 C, identical with described in embodiment 5, can divide liquid crystal layer 23 for first
Area 231, the second area 232 and the 3rd area 233, and in order to solve watch display device when visual inhomogeneities, the firstth area
231st, the haze value (haze value) in the second area 232 and the 3rd area 233 height is preferably big with the spacing of corresponding candy strip 5
Small directly proportional, the width W1 with candy strip 5, W2, W3 are inversely proportional.In other words, when the spacing of candy strip 5 is larger, width compared with
Hour, corresponding liquid crystal layer region preferably has high haze value；On the contrary, when the spacing of candy strip 5 is smaller, width is larger,
Corresponding liquid crystal layer region preferably has ground fog value.Liquid crystal layer subregion herein not limit, its number of partitions also can be 2,4,
5 ... wait other integers.
[embodiment 10]
Or multiple conductive layers in modulation unit 2 may make up an active-matrix or a passive-matrix.As shown in Figure 10 A
For the schematic diagram of passive-matrix, it has parallel strip negative electrode 81, organic layer (not shown) and parallel strip anode 82, negative electrode
81 is mutually orthogonal with anode 82, and driver element 33 is formed in each infall；The signal of active-matrix is shown for another Figure 10 B
Figure, it has planar negative electrode, organic layer and planar anode (not shown), and planar anode is covered with thin film transistor (TFT) (TFT) battle array
Row, wherein comprising data wire 83 (data line) and scan line 84 (scan line), to control each driver element 33.
In this case, reaching the different fogging degrees of liquid crystal layer 23 using active-matrix or passive-matrix, it can effectively reach while be in
The effect in existing two-dimentional area 235 and space 236.
Above-described embodiment is illustrated only for convenient explanation, and the interest field that the present invention is advocated certainly should be special to apply
It is defined described in sharp scope, rather than is only limitted to above-described embodiment.
Claims (16)
- A kind of 1. display device, it is characterised in that including：One display unit, include a picture element layer；One back light unit；AndOne modulation unit, is arranged between the display unit and the back light unit；Wherein, the modulation unit includes a liquid crystal layer and multiple conductive layers, the liquid crystal layer between the multiple conductive layer, and The liquid crystal layer includes a polymer dispersion type liquid crystal or a stabilizing polymer type liquid crystal；Wherein, the modulation unit has respectively positioned at one first conductive layer and one second conductive layer of the both sides of the liquid crystal layer, should First conductive layer and the second conductive layer wherein at least side also set up one the 3rd conductive layer, first conductive layer or this second lead An insulating barrier is set between electric layer and the 3rd conductive layer；Wherein, it is patterned electrodes with first conductive layer of the 3rd conductive layer homonymy or second conductive layer；Wherein, the liquid crystal layer has multiple subregions.
- 2. display device as claimed in claim 1, it is characterised in that the back light unit, comprising：One light-emitting component and a leaded light Plate, the light that the light-emitting component is sent are incident to the light guide plate, and the light guide plate has a first surface and relative one second Surface, the first surface is adjacent to the modulation unit, and the second surface of the light guide plate is provided with multiple candy strips.
- 3. display device as claimed in claim 2, it is characterised in that the second surface of the light guide plate is provided with a reflection Layer, and the reflecting layer covers the second surface and the multiple candy strip.
- 4. display device as claimed in claim 2, it is characterised in that the plurality of candy strip is provided with a reflecting layer, and should Reflecting layer covers the plurality of candy strip.
- 5. display device as claimed in claim 1, it is characterised in that the patterned electrodes include multiple bar elements.
- 6. the display device described in claim 2, it is characterised in that the light-emitting component is arranged at the single side or double of the light guide plate Side.
- 7. display device as claimed in claim 6, it is characterised in that the light-emitting component is arranged at the double side of the light guide plate, Each candy strip has a first end and an one second relative end, and the width of the first end is one first width, second end Width be one second width, and each candy strip has a central width；Wherein, first width and second width point Little Yu not the central width.
- 8. display device as claimed in claim 6, it is characterised in that the light-emitting component is arranged at the single side of the light guide plate, Each candy strip has a first end and an one second relative end, and the width of the first end is one first width, second end Width be one second width；Wherein, first width is less than second width.
- 9. display device as claimed in claim 7, it is characterised in that the liquid crystal layer has one first area, one second area and one 3rd area, and the haze value in firstth area, secondth area and the 3rd area respectively with first width, second width and this in It is in inverse ratio to entreat width.
- 10. display device as claimed in claim 8, it is characterised in that the liquid crystal layer has one first area, one second area, and The haze value in firstth area and secondth area is in respectively inverse ratio with first width and second width.
- 11. display device as claimed in claim 9, it is characterised in that with the 3rd conductive layer be arranged on phase homonymy this One conductive layer or second conductive layer include multiple bar elements, the width of each bar element and firstth area, secondth area, And the 3rd the haze value in area be in inverse ratio.
- 12. display device as claimed in claim 10, it is characterised in that with the 3rd conductive layer be arranged on phase homonymy this One conductive layer or second conductive layer include multiple bar elements, the width of each bar element and firstth area and secondth area Haze value be in inverse ratio.
- 13. display device as claimed in claim 2, it is characterised in that the light that the light-emitting component is sent is incident to this and led Tabula rasa is to provide an area source, and the back light unit also includes a barrier layer, is arranged at the first surface of the light guide plate.
- 14. display device as claimed in claim 2, it is characterised in that the light that the light-emitting component is sent is incident to this and led Tabula rasa is to provide an area source, and the modulation unit also includes a barrier layer, is arranged between the liquid crystal layer and the back light unit.
- 15. display device as claimed in claim 1, it is characterised in that the picture element layer and the backlight list in the display unit Distance between member is 0.5mm between 4mm.
- 16. display device as claimed in claim 1, it is characterised in that the display unit is used in conjunction with one with the modulation unit Substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410103382.0A CN104932110B (en) | 2014-03-19 | 2014-03-19 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410103382.0A CN104932110B (en) | 2014-03-19 | 2014-03-19 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104932110A CN104932110A (en) | 2015-09-23 |
| CN104932110B true CN104932110B (en) | 2018-01-30 |
Family
ID=54119345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410103382.0A Active CN104932110B (en) | 2014-03-19 | 2014-03-19 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104932110B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717705A (en) * | 2016-04-26 | 2016-06-29 | 京东方科技集团股份有限公司 | Backlight module and display device |
| US10522607B2 (en) | 2017-07-11 | 2019-12-31 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd | OLED display panel and OLED display apparatus |
| CN107316612B (en) * | 2017-07-11 | 2019-08-30 | 深圳市华星光电半导体显示技术有限公司 | A kind of OLED display panel and OLED display |
| CN108761886A (en) * | 2018-03-21 | 2018-11-06 | 青岛海信电器股份有限公司 | A kind of display device |
| CN110068946B (en) * | 2019-05-17 | 2021-12-03 | 京东方科技集团股份有限公司 | Display module, display device and visual angle control method |
| CN111505890A (en) * | 2020-04-22 | 2020-08-07 | 四川大学 | 2D/3D compatible front projection display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201237683Y (en) * | 2008-07-28 | 2009-05-13 | 天马微电子股份有限公司 | LCD device capable of implementing 2D/3D conversion |
| CN101526674A (en) * | 2008-03-07 | 2009-09-09 | 胜华科技股份有限公司 | An image display device and the light source control device thereof |
| CN102207576A (en) * | 2010-03-31 | 2011-10-05 | 索尼公司 | Light source device and stereoscopic display apparatus |
| CN102385195A (en) * | 2011-09-28 | 2012-03-21 | 昆山龙腾光电有限公司 | 2D (dimensional)/3D switching display equipment and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2208106A1 (en) * | 2007-10-04 | 2010-07-21 | 3M Innovative Properties Company | Embedded stereoscopic 3d display and 2d display film stack |
-
2014
- 2014-03-19 CN CN201410103382.0A patent/CN104932110B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101526674A (en) * | 2008-03-07 | 2009-09-09 | 胜华科技股份有限公司 | An image display device and the light source control device thereof |
| CN201237683Y (en) * | 2008-07-28 | 2009-05-13 | 天马微电子股份有限公司 | LCD device capable of implementing 2D/3D conversion |
| CN102207576A (en) * | 2010-03-31 | 2011-10-05 | 索尼公司 | Light source device and stereoscopic display apparatus |
| CN102385195A (en) * | 2011-09-28 | 2012-03-21 | 昆山龙腾光电有限公司 | 2D (dimensional)/3D switching display equipment and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104932110A (en) | 2015-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9817279B2 (en) | Display device | |
| CN104932110B (en) | Display device | |
| CN102819147B (en) | Display device | |
| KR101722661B1 (en) | 2d/3d switchable display device | |
| CN102141707B (en) | Light transmission mode switching device and two-dimensional/three-dimensional switchable display equipment | |
| CN101968595B (en) | 2D/3D switching liquid crystal lens assembly and display device | |
| CN102436101B (en) | Liquid crystal lens grating and three-dimensional display device | |
| US20160320656A1 (en) | Display panels having penetration effect | |
| CN103186008B (en) | Electric control liquid crystal lens panel and 3D/2D switchable display device | |
| KR20130092005A (en) | Liquid crytal lens panel, display device having the same | |
| CN105204261B (en) | A kind of display panel and its driving method, display device | |
| CN103700686B (en) | There is 3D display floater and the display packing thereof of Deep Canvas | |
| CN104020624A (en) | Naked eye 3D display device | |
| CN202351566U (en) | Touch type stereo display device | |
| CN102955322B (en) | Three-dimensional display apparatus | |
| US10120260B2 (en) | Viewing angle controlling light source device and display apparatus | |
| CN105446013B (en) | Liquid crystal lens and 3 d display device | |
| CN104243963A (en) | Display apparatus, touch panel and method of displaying an image frame | |
| CN103389587B (en) | Based on the 3D display device of electroluminescent refraction index changing | |
| CN204009309U (en) | Bore hole 3D 3 d display device | |
| TW201423236A (en) | 2D and 3D switchable display device and liquid crystal lenticular lens thereof | |
| CN103744247A (en) | Electronic control liquid crystal lens and three-dimensional display device thereof | |
| CN202693951U (en) | Stereo display device | |
| CN103472650A (en) | Liquid crystal lens and 3D (three dimensional) display device | |
| CN205301770U (en) | Directional light source device in visual angle and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |